Nvidia is world renown for renaming the industry-accepted terms to the ones that it believes are better, and its chipset is probably the best example.

When Nvidia introduced Nforce 1, it said to the world that this is an MCP, Media Communication Processor, not a chipset; and it took Nvidia years to convince people to call its chipset simply MCP.

Now in late 2008 they changed their minds again, as MCP is not MCP anymore. The more suitable term is GPU with System Core Logic. This is how the company plans to market its NVIDIA GeForce 9400M GPU that is actually an integrated graphics chipset.

New MacBooks have this chipset and this chipset has 16 Shader units and should even do some CUDA. A traditional IGP chipset has a GPU core, memory controller and FSB and inter chip communication in Northbridge, while SATA, USB, sound are in the Southbridge. In Nvidia’s case, everything is in a single chip.
 
The chip looks good, but we don’t know what’s up with the name. We are sure that someone will be upset for buying a Geforce 9400M notebook and finding that it doesn't have a discrete graphics card inside, as the name is definitely misleading.